Best Iou Marker Apps

250+ iOS apps curated and reviewed

4.0 avg rating
20 free apps
Updated October 2026

IOU is the household name in iou marker, but it's far from the only option. We track 250+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.

Compare top Iou Marker Apps (October 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1IOU-MarkerIOU-MarkerFree5.0★ (8)YesYesOct 2026
2Square Point of Sale (POS)Square Point of Sale (POS)Free4.8★ (607K)NoNoOct 2026
3PaycomPaycomFree4.8★ (1.6M)NoNoOct 2026
4Vola: Cash Advance & CreditVola: Cash Advance & CreditFree4.6★ (43K)YesNoOct 2026
5BILL AP & AR Business PaymentsBILL AP & AR Business PaymentsFree4.9★ (49K)NoNoOct 2026
6ClickUp: Tasks, Chat, Docs, AIClickUp: Tasks, Chat, Docs, AIFree4.7★ (10K)NoNoOct 2026
7VANSi - Cash AdvanceVANSi - Cash AdvanceFree4.7★ (30K)NoNoOct 2026
8AutoPayAutoPayFree—NoNoMay 2026

Top Picks for Iou Marker

IOU-Marker#1

IOU-Marker by IOU Marker

Agreements, e‑sign, payments
Editor's Choice
💼 Business
5.0(8 ratings)
FreeAdsIn-App Purchases
IOU-Marker screenshot 1
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IOU-Marker screenshot 5
IOU-Marker screenshot 6

Create professional agreements and manage payments effortlessly. Draft documents using AI, e-sign, and track invoices and due dates in one organized platform. Secure sign-in ensures your data is protected.

Square Point of Sale (POS)#2

Square Point of Sale (POS) by Block, Inc.

Payments & Business Dashboard
Strong Contender
💼 Business
4.8😐(607K ratings)
Free
#26in Business
Square Point of Sale (POS) screenshot 1
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Square Point of Sale (POS) screenshot 4
Square Point of Sale (POS) screenshot 5
Square Point of Sale (POS) screenshot 6

This all-in-one payments processing app helps businesses of all types manage operations, accept payments, and boost profits. It offers industry-specific modes for retail, restaurants, services, and beauty businesses, with features like inventory management, online booking, and invoicing.

What We Love

  • 👍 Convenient and easy to use
  • 🚀 Quick transactions and payouts
  • 💡 Useful reporting and inventory management features
  • 👍 Professional and sleek hardware design

Room to Improve

  • 🐛 Connectivity issues with card readers
  • 🔒 Concerns over account deactivation and fund holds
  • 🤖 Poor customer service and lack of live support
  • ⏱️ Slow fund transfers and delays in payouts
4.8😐(1.6M ratings)
Free
#30in Business
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Manage HR and payroll tasks like checking schedules, requesting time off, and reviewing pay. Access employee information, track expenses, and complete training. Managers can approve requests and view team data.

What We Love

  • 👍 Convenient self-service dashboard
  • 🚀 Easy to access pay and financial information
  • 🔒 Secure login with biometrics
  • 👍 Helpful for tracking time and expenses
  • 👍 Allows employees to manage their own information

Room to Improve

  • 🐛 Frequent logout issues without notification
  • 🤔 Confusing or counterintuitive user interface
  • 🤔 Difficult to correct missed punches or time entries
  • 🤔 Lack of visibility into hours worked per shift/week
  • 🤔 Overly complex process for requesting time off

More Iou Marker apps to explore

FAQ about Iou Marker

What are the best iou marker apps for iPhone?
IOU-Marker tops our iou marker apps ranking as of October 2026, with a 5.0-star average from 8 App Store ratings, and it's free to download.
Yes — 20 of the top iou marker apps we rank are free to download, including IOU-Marker and Square Point of Sale (POS).
IOU-Marker shows ads and offers in-app purchases, according to its App Store listing as of October 2026.
We track 250+ iou marker apps on the iOS App Store as of October 2026, ranked by rating, recency, and analysis of real user reviews.

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